Mode Engineering in Linear Coherently Coupled Vertical-Cavity Surface-Emitting Laser Arrays

Bradley J. Thompson; Zihe Gao; Stewart T.M. Fryslie; Kent D. Choquette

doi:10.1109/JSTQE.2019.2950799

Mode Engineering in Linear Coherently Coupled Vertical-Cavity Surface-Emitting Laser Arrays

Bradley J. Thompson, Zihe Gao, Stewart T.M. Fryslie, Kent D. Choquette

Research output: Contribution to journal › Article › peer-review

Abstract

The supermode tuning of coherent 3 × 1 vertical-cavity surface-emitting laser arrays are characterized and simulated. The array elements are resonantly tuned to achieve coherent operation using selective current injection. Depending on the electrical bias, multiple coherent supermodes are observed above threshold. An effective index model is developed to account for the variable current injection and to simulate the supermodes of the linear array. Agreement between experimental near-field and far-field coherent modes and our model simulations are found both at and above lasing threshold.

Original language	English (US)
Article number	8889386
Journal	IEEE Journal of Selected Topics in Quantum Electronics
Volume	25
Issue number	6
DOIs	https://doi.org/10.1109/JSTQE.2019.2950799
State	Published - Nov 1 2019

Keywords

Laser modes
phased arrays
semiconductor laser arrays
vertical cavity surface emitting lasers (VCSELs)

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

Online availability

10.1109/JSTQE.2019.2950799

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title = "Mode Engineering in Linear Coherently Coupled Vertical-Cavity Surface-Emitting Laser Arrays",

abstract = "The supermode tuning of coherent 3 × 1 vertical-cavity surface-emitting laser arrays are characterized and simulated. The array elements are resonantly tuned to achieve coherent operation using selective current injection. Depending on the electrical bias, multiple coherent supermodes are observed above threshold. An effective index model is developed to account for the variable current injection and to simulate the supermodes of the linear array. Agreement between experimental near-field and far-field coherent modes and our model simulations are found both at and above lasing threshold.",

keywords = "Laser modes, phased arrays, semiconductor laser arrays, vertical cavity surface emitting lasers (VCSELs)",

author = "Thompson, {Bradley J.} and Zihe Gao and Fryslie, {Stewart T.M.} and Choquette, {Kent D.}",

note = "Funding Information: Manuscript received February 1, 2019; revised October 20, 2019; accepted October 21, 2019. Date of publication October 31, 2019; date of current version December 3, 2019. This was supported by the Nation Science Foundation under Award ECCS 15-09845. (Corresponding author: Bradley J. Thompson.) B. J. Thompson and K. D. Choquette are with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA (e-mail: bradley.thomps@gmail.com; choquett@illinois.edu). Funding Information: This was supported by the Nation Science Foundation under Award ECCS 15-09845. Publisher Copyright: {\textcopyright} 1995-2012 IEEE.",

year = "2019",

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doi = "10.1109/JSTQE.2019.2950799",

language = "English (US)",

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T1 - Mode Engineering in Linear Coherently Coupled Vertical-Cavity Surface-Emitting Laser Arrays

AU - Thompson, Bradley J.

AU - Gao, Zihe

AU - Fryslie, Stewart T.M.

AU - Choquette, Kent D.

N1 - Funding Information: Manuscript received February 1, 2019; revised October 20, 2019; accepted October 21, 2019. Date of publication October 31, 2019; date of current version December 3, 2019. This was supported by the Nation Science Foundation under Award ECCS 15-09845. (Corresponding author: Bradley J. Thompson.) B. J. Thompson and K. D. Choquette are with the Department of Electrical and Computer Engineering, University of Illinois at Urbana-Champaign, Urbana, IL 61801 USA (e-mail: bradley.thomps@gmail.com; choquett@illinois.edu). Funding Information: This was supported by the Nation Science Foundation under Award ECCS 15-09845. Publisher Copyright: © 1995-2012 IEEE.

PY - 2019/11/1

Y1 - 2019/11/1

N2 - The supermode tuning of coherent 3 × 1 vertical-cavity surface-emitting laser arrays are characterized and simulated. The array elements are resonantly tuned to achieve coherent operation using selective current injection. Depending on the electrical bias, multiple coherent supermodes are observed above threshold. An effective index model is developed to account for the variable current injection and to simulate the supermodes of the linear array. Agreement between experimental near-field and far-field coherent modes and our model simulations are found both at and above lasing threshold.

AB - The supermode tuning of coherent 3 × 1 vertical-cavity surface-emitting laser arrays are characterized and simulated. The array elements are resonantly tuned to achieve coherent operation using selective current injection. Depending on the electrical bias, multiple coherent supermodes are observed above threshold. An effective index model is developed to account for the variable current injection and to simulate the supermodes of the linear array. Agreement between experimental near-field and far-field coherent modes and our model simulations are found both at and above lasing threshold.

KW - Laser modes

KW - phased arrays

KW - semiconductor laser arrays

KW - vertical cavity surface emitting lasers (VCSELs)

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Mode Engineering in Linear Coherently Coupled Vertical-Cavity Surface-Emitting Laser Arrays

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